Even if they did, NATO can't accept new members that are in active conflict. Putin doesn't believe Ukraine is a real country, real ethnic group, or real culture

Even if they did, NATO can't accept new members that are in active conflict. Putin doesn't believe Ukraine is a real country, real ethnic group, or real culture. Ukraine could give up those entire regions and Russia would not be satisfied, only pushing the war front farther up closer to the West. The war could be smaller at that point, but it would still be active, and Putin/Russia would make sure that they conflict were hot enough to not allow membership.